RESUMO
PURPOSE: A retrospective evaluation of extended anterior ceramic laminate veneers (EACVs) after a mean observational period of 10 years. METHODS: Thirty-one patients (20 females/11 males) underwent restoration with 101 adhesively luted, heat-pressed EACVs (maxilla, n = 65; mandible, n = 36). RESULTS: The 10 year survival rate was 91.8% (95% confidence interval [95%-CI]: 0.87;0.97). Eight ceramic fractures, one biological failure, and one change in treatment plan caused the observed failures. Seventy-seven of the 101 restorations remained intervention-free in service (success rate: 78.6% [95%-CI: 0.70;0.88]). Fourteen interventions were needed (nine recementations, two endodontic treatments, two composite fillings, and one fracture polishing). The jaw position (maxilla/mandible, survival P = .578/success P = .056) had no influence on the clinical performance. EACVs covering large areas of exposed dentin (>50%) were associated with a significantly increased risk (hazard ratio 2.98, P = .019) of needing a clinical intervention (success rate: 68.0% [95%-CI: 0.52; 0.84]). However, the degree of dentin exposure had no effect on the survival rate (P = .761). CONCLUSIONS: After a mean observational period of 10 years, mandibular and maxillary EACVs exhibited survival and success rates that were comparable. Significantly lower success rates were associated with large areas of exposed dentin (>50%). CLINICAL SIGNIFICANCE: Mandibular and maxillary EACV revealed 10-year survival rates comparable to those published for anterior metal-ceramic and glass-ceramic full-coverage crowns. Precaution should be taken not to expose dentin, and when large areas of dentin are exposed, different conditioning/luting strategies should be used.
